It pays to advertise

I was riding the unik to work today. As I rode across a crosswalk, I passed in front of a tree service truck with a couple of guys in it, waiting to turn right. I pulled up and waited for the lights to change, and as I did so I noticed the guy in the passenger seat 'staring', so I nodded and smiled politely. The driver then yelled out the window, "Hey, I have one of those! I don't know how to use it!"

Trying to be encouraging/polite, I responded, "Yeah, it just takes some practice."

"No, I don't want it. You want it? I'll give it to you."

Pause. "Sure!"

"Here. Here's my card. Call me."

I'm pondering what it means that a) this happens right before I go up to the mountains, and b) that my brother is thinking about buying a unicycle.